Báo cáo lâm nghiệp: "Response of Douglas-ﬁr leaf area index

Báo cáo lâm nghiệp: "Response of Douglas-ﬁr leaf area index and litterfall dynamics to Swiss needle cast in north coastal Oregon, USA" ppt

... 121–132 121 c  INRA, EDP Sciences, 2007 DOI: 10.1051/forest:2006096 Original article Response of Douglas-ﬁr leaf area index and litterfall dynamics to Swiss needle cast in north c oastal Oregon, USA Aaron ... foliage and ﬁne woody litterfall; and (3) monthly distribution of foliage litterfall. Swiss needle cast was expected to cause a decrease i...

Ngày tải lên : 07/08/2014, 16:20

12
337
0

Báo cáo lâm nghiệp: "Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions of the sit" ppt

... to exhibit up to a 60% increase in the vitality of ﬁne roots and up to a 70% increase in the mycorrhizal infection of ﬁne roots. e injury had no impact on the type of mycorrhiza. Operating ... present in all age classes and one stand includes healthy and injured trees growing side by side (in Moravec even dead standing trees). e primary objective of the survey...

Ngày tải lên : 07/08/2014, 03:22

10
338
0

Báo cáo lâm nghiệp: "Response of birch (Betula pendula Roth) phytophages to liming" pdf

... between the spring and summer aspect is related to the spring feeding and persistence of leaves with mines even in the summer season (Fig. 1c). In the case of mining insects of the genus Eriocrania ... by the extent of damage to the assimilatory area in feeding caused by an undetermined hymenopterous larva (summer increase), weevils (spring and summer decline a...

Ngày tải lên : 07/08/2014, 10:22

7
261
0

Báo cáo lâm nghiệp:" Response of newly planted Norway spruce seedlings to fertilization, irrigation and herbicide treatments" pps

... due to transplanting shock overshadowed changes of the environment [21]. This stresses the need examining inter- actions between seedling types, seedling handling and regen- eration treatments in ... flooding in the irrigation treatment during the growing season of 1998, irrigation was reduced during 1999 and mean irrigation amounted to about 44 mm month –1 . During the growin...

Ngày tải lên : 08/08/2014, 01:21

7
248
0

Báo cáo lâm nghiệp: "Response of shoot growth and gas exchange of Picea abies clones to rain acidity and the addition of ions" ppt

... 728-733 Response of shoot growth and gas exchange of Picea abies clones to rain acidity and the addition of ions P. Van Elsacker I. Impens Department of Biology, University of Antwerp ... thought to be very important. Interfer- ence of pollutants with the ecophysiologi- cal performance of forest trees needs to be investigated in order...

Ngày tải lên : 09/08/2014, 04:20

4
181
0

Báo cáo lâm nghiệp: "Characteristics of 3rd (Querci-fageta s. lat.) and 4th (Fageta (abietis) s. lat.) vegetation tiers of north-eastern Moravia and Silesia (Czech Republic)" pps

... representation of Pinus sylvestris in 3 rd VT in the western part of the NFA 32 and the northern part of the NFA 29 (i.e. western part of the Opavský biogeographical region, up to the crossing in the ... (including also non-forest land) (Fig. 1). It is dominant in the territory of Moravia and Silesia in the Středomoravské Karpaty hills, in the part of the B...

Ngày tải lên : 07/08/2014, 04:20

13
290
0

Báo cáo lâm nghiệp: " Changes of the mixed mountain virgin forest after 70 years on a permanent plot in the Ukrainian Carpathians" pps

... mosaic of small spots of developmental stages and phases in the plot, and with distinct volume of lying deadwood. Changes that took place in the studied forest since the 1930’s were not influenced ... into thin diameter classes, which is related to the ability of ﬁr to persist in the shade with minimal increments and thus wait for favourable light conditions. Ye...

Ngày tải lên : 07/08/2014, 10:22

11
303
0

Báo cáo lâm nghiệp: "Evapotranspiration of a declining Quercus robur (L.) stand from 1999 to 2001. I. Trees and forest floor daily transpiration" ppsx

... difficult to interpret for several reasons: (i) in the thinned plot, 2 periods out of 3 occur during leaf- flush- ing and caterpillars attacks, when variability is probably increased and (ii) in the ... velocity profiles of water flow in trunks of Norway spruce and oak and response of spruce to severing, Tree Physiol. 10 (1993) 367–380. [12] Clearwater M.J., Meinz...

Ngày tải lên : 08/08/2014, 00:22

10
365
0

Báo cáo lâm nghiệp: "Evapotranspiration of a declining Quercus robur (L.) stand from 1999 to 2001. II. Daily actual evapotranspiration and soil water reserve" potx

... Daily In% var- ied between 18.2 and 27.7% in the thinned plot and between 22.3 and 43.4% in the control plot. In the thinned plot, In% during winter 2000–2001 is similar between leafy and non-leafy periods, ... Control). Evapotranspiration in a declining oak stand 621 was deficitary (–78 mm) in leafy period, in particular in May (–11.6 mm) and July (–32.5 mm). Rain...

Ngày tải lên : 08/08/2014, 00:22

9
319
0

Báo cáo lâm nghiệp: "Effects of light intensity on the growth and energy balance of photosystem II electron transport in Quercus alba " potx

... 48]). With increasing light intensity, photosynthesis rate increased from HS to MS to LS to FL and thus more biomass was pro- duced by the same amount of leaf area. The rapid rise in LAR with decreasing ... 46% of that under full sunlight. The shift from photochemical to non-photochemical quenching occurred in response to increasing actinic light and as growth irradia...

Ngày tải lên : 08/08/2014, 00:22

8
531
0